IDENTIFIERS

  • Current Taxon Name (Soil Name): Baca
  • OSD
  • Series Extent
  • User Site ID: 96CO628002
  • User Pedon ID: 96CO628002
  • Vegetation Plot ID: 96CO628002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Pedon # - 97P0292
  • NCSS Pedon Lab Data NASIS Record ID - 68764
  • Print Date: 11/11/2024

    • LOCATION

  • Location In Web Soil Survey
  • AOI is roughly a square mile and pedon is marked in the center.
  • Location in SoilWeb
  • Location in Google Maps
  • Std. Latitude: 37.2778611
  • Std. Longitude: -103.3285278
  • Datum: WGS84
  • Township: 32 S.
  • Range: 53 W.
  • Section: 11
  • PLSS Details: 2,450 feet east and 300 feet south of northwest corner
  • Map Unit: BaA—Baca silt loam, 0 to 3 percent slopes
  • State: Colorado
  • County: CO071—Las Animas
  • MLRA: 67B—Central High Plains, Southern Part
  • Non-MLRA Soil Survey Area: CO628—Las Animas County Area, Colorado, Parts of Huerfano and Las Animas Counties
  • 7.5 Minute USGS Quad: 37103-C3—Kim North, Colorado

    • PEDON

  • Describers Name: LAN
  • Current Taxonomic Class: Fine, smectitic, mesic Aridic Haplustalfs
  • Current Taxon Kind: series
  • Pedon Type: within range of map unit
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 722
  • Sampled As Information:
  • Soil Name - Baca
  • Taxonomic Class - Fine, smectitic, mesic Aridic Haplustalfs
  • PSC - 8 to 66 cm.
  • Classificaton Date - 4/12/1996
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - ustic
  • Moisture SUBClass - aridic (torric)
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess
  • Landscape: plains
  • Landform: plain
  • Hill Slope Profile: backslope
  • Slope Position: middle third
  • Runoff: very low
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/12/1996 (actual site observation date)
  • Air Photo ID: 32-F
  • Plant Association Name: Loamy
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Horizon Lab Results - 1
    Horizon Top Depth Bottom Depth Sample ID Data Collector Total Clay CaCO3 Clay Total Silt Fine Silt Co. Silt Total Sand Total Sand Method VC Sand Co. Sand Med. Sand Fine Sand VF Sand VF Sand Method Texture Class - Field Lab Rubbed Fiber Unrubbed Fiber pH H2O
    cm cm % % % % % % % % % % % % %

    Bt2

    Btk

    BCk

    Bk

    15

    48

    66

    102

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    Pedon Horizon Lab Results - 2
    Horizon Top Depth Bottom Depth Sample ID pH CaCl2 pH NaF pH Ox Delta pH LL PL PI Atter. Samp. Cond. COLE Pot. Acidity Ca + Mg - Meh 2 K Ca + Mg - Sat. Paste KCl Extract. Acidity Base Sat. - Meh 2 CEC-7 CEC-8.2
    cm cm % % % cm/cm meq/100g cmol(+)/kg cmol(+)/kg mmol(+)/l cmol(+)/kg % cmol(+)/kg cmol(+)/kg

    Bt2

    Btk

    BCk

    Bk

    15

    48

    66

    102

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    Pedon Horizon Lab Results - 3
    Horizon Top Depth Bottom Depth Sample ID ECEC Phosphate P NO3-N EC EC Method EC 1:5 by volume CaCO3 Equiv. Equiv. Gypsum Na SAR Gypsum Req. Humic Color Fulvic Color Humic + Fulvic Color Al PI Pyro. Hue PyrO. Value Pyro. Chroma
    cm cm cmol(+)/kg mg/kg mg/kg dS/m dS/m % % mmol(+)/l % L-pcu/g L-pcu/g L-pcu/g %

    Bt2

    Btk

    BCk

    Bk

    15

    48

    66

    102

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    8

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    1

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    Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    BOGR2

    GUSA2

    OPPO

    PASM

    Bouteloua gracilis

    Gutierrezia sarothrae

    Opuntia polyacantha

    Pascopyrum smithii

    blue grama

    broom snakeweed

    plains pricklypear

    western wheatgrass

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    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    calcic horizon

    0—8

    8—66

    48—152

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    Setting and Climate
    Slope Slope Length USLE Upslope Length Elev. Corr. Elev Aspect MAP REAP FFD MAAT MSAT MWAT MAST MSST MWST MFFP PE Index Climate Station ID Climate Station Name Climate Station Type
    % m degrees mm mm C mm

    1

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    1723

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    83

    381

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    11.1

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    10.6

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    A—0 to 8 centimeters (0.0 to 3.1 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; silt loam; 26 percent clay; moderate very fine granular, and weak medium subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; 10.0 very fine roots and 1.0 fine roots; fragments; noneffervescent, by hcl, 1n; neutral, pH 7.2, hellige-truog; abrupt smooth boundary.; dry when described; observed in trench
    Bt1—8 to 15 centimeters (3.1 to 5.9 inches); brown (10YR 4/3), dark brown (10YR 3/3), moist; silty clay loam; 34 percent clay; moderate fine prismatic parts to strong fine and medium subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 1.0 very fine and fine roots; 35 percent distinct clay films on faces of peds; fragments; slight effervescence, by hcl, 1n; slightly alkaline, pH 7.4, hellige-truog; abrupt wavy boundary.; dry when described;. continuous - phpvsfiid 111230; continuous - phpvsfiid 111230
    Bt2—15 to 48 centimeters (5.9 to 18.9 inches); grayish brown (10YR 5/2), dark grayish brown (10YR 4/2), moist; clay; 45 percent clay; strong fine and medium prismatic parts to strong fine and medium angular blocky structure; extremely hard, very firm, very sticky, very plastic; 1.0 very fine roots and 0.1 fine roots; 45 percent distinct clay films on faces of peds; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; abrupt wavy boundary.; dry when described;. continuous - phpvsfiid 111231; continuous - phpvsfiid 111231
    Btk—48 to 66 centimeters (18.9 to 26.0 inches); brown (10YR 5/3), brown (10YR 4/3), moist; silty clay; 42 percent clay; moderate medium prismatic parts to strong fine and medium subangular blocky structure; extremely hard, very firm, very sticky, very plastic; 1.0 very fine roots and 0.1 fine roots; 40 percent distinct clay films on faces of peds; 10 percent fine distinct irregular carbonate masses throughout; fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.4, hellige-truog; clear wavy boundary.; dry when described;. continuous - phpvsfiid 111232; continuous - phpvsfiid 111232
    BCk—66 to 102 centimeters (26.0 to 40.2 inches); brown (10YR 5/3), dark yellowish brown (10YR 4/4), moist; silty clay loam; 29 percent clay; weak medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 0.1 very fine roots; 2 percent fine distinct threadlike carbonate masses throughout; fragments; violent effervescence, by hcl, 1n; strongly alkaline, pH 8.6, hellige-truog; gradual smooth boundary.; dry when described;
    Bk—102 to 152 centimeters (40.2 to 59.8 inches); yellowish brown (10YR 5/4), dark yellowish brown (10YR 4/4), moist; silt loam; 26 percent clay; weak fine and medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 0.1 very fine roots; 10 percent medium distinct irregular carbonate masses throughout; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog.; dry when described;